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Finding the Fourth Proportional to 626,743.41, 864,925.74 and 354,806.37

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Solution

The fourth proportional to 626,743.41, 864,925.74 and 354,806.37 is: 489,644.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,743.41 : 864,925.74 = 354,806.37 : x
  2. Step 2: Convert to fraction form
    626,743.41/864,925.74 = 354,806.37/x
  3. Step 3: Cross multiply
    626,743.41x = 864,925.74 × 354,806.37
  4. Step 4: Simplify right side
    626,743.41x = 306,881,162,128.96
  5. Step 5: Solve for x
    x = 306,881,162,128.96/626,743.41
  6. Step 6: Final answer
    x = 489,644.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.